body,ul{font-size: 0.3rem;padding: 0;margin: 0;list-style: none;background-color: #f6f6f6;}
.added-top{width: 100%;height: 1rem;background: white;}
.back2{width:0.5rem;height:0.5rem;margin-left: 0.4rem;vertical-align: middle;}
.added-top span:nth-child(2){display: inline-block;margin-top: 0.3rem;margin-left: 28%;}
.added-content p{line-height: 1rem;}
.device {margin-top: 0.5rem;}
.device li{float: left;width:24.7%;border-right: 1px solid #f7f7f7;border-top: 1px solid #f7f7f7;}
.device img{display: block;width: 100%;}